#如何换票
1.查是否出票’
`curl http://localhost:1635/chequebook/cheque | jq`
1.下载兑换脚本
wget -O cashout.sh https://gist.githubusercontent.com/ralph-pichler/3b5ccd7a5c5cd0500e6428752b37e975/raw/cashout.sh
2.增加权限
chmod +x cashout.sh
3.执行脚本，兑换
./cashout.sh